EP 2873602 A4 20150715 - ELECTRICALLY ASSISTED BICYCLE
Title (en)
ELECTRICALLY ASSISTED BICYCLE
Title (de)
ELEKTRISCH UNTERSTÜTZTES FAHRRAD
Title (fr)
BICYCLETTE À ASSISTANCE ÉLECTRIQUE
Publication
Application
Priority
JP 2012004461 W 20120711
Abstract (en)
[origin: EP2873602A1] An electrically assisted bicycle is provided with a so-called single-shaft motor drive unit that can satisfactorily keep torque detection capability. The outer periphery of a crankshaft 7a has a cylindrical human-power transmission member 28 having a torque sensor 31 for detecting a human driving force and a combined force member 29 that combines a human driving force and an auxiliary driving force from a motor 21. A one-way clutch is not provided on a driving force transmission path including the crankshaft 7a, the human-power transmission member 28, and the combined force member 28. The human-power transmission member 28 and the combined force member 29 are always rotated in response to a rotation of the crankshaft 7a.
IPC 8 full level
B62M 6/55 (2010.01)
CPC (source: EP US)
B62M 6/50 (2013.01 - US); B62M 6/55 (2013.01 - EP US); Y10T 74/19014 (2015.01 - EP US)
Citation (search report)
- [XI] EP 0776818 A1 19970604 - MATSUSHITA ELECTRIC IND CO LTD [JP]
- [XI] DE 102009045447 A1 20100617 - BOSCH GMBH ROBERT [DE]
- [XI] DE 102010060482 A1 20120510 - STEFFEN SOEHNER GMBH [DE]
- [X] KR 20120058209 A 20120607 - KNU INDUSTRY COOPERATION FOUND [KR]
- See references of WO 2014009995A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 2873602 A1 20150520; EP 2873602 A4 20150715; EP 2873602 B1 20171129; JP 5202769 B1 20130605; JP WO2014009995 A1 20160620; US 2015191215 A1 20150709; US 9718514 B2 20170801; WO 2014009995 A1 20140116
DOCDB simple family (application)
EP 12881077 A 20120711; JP 2012004461 W 20120711; JP 2012550249 A 20120711; US 201214413392 A 20120711